Work-holder.



O. B. GROSS.

WORK HOLDER.

APPLICATION HLED APR.27. 1914.

1,163,145. Patented Dec. 7, 1915.

'UNITED STATES OWEN B. GROSS, 0F AURORA, ILIINOIS.

WORK-HOLDER.

Specification of Letters Patent.

Patented Dec. a', 1915.

Application led April 27, 1914. Serial No. 834,564.

work securely in various positions duringy the operation of the machine.

The principal object of my improvements is to construct a. device of this character that is capable of practically an unlimited range of adjustability so as to be able to hold the work at any angle to the axis of the drill or other tool employed in performing the function of the machine.

Another object of-my invention is to im prove the style and eiiiciency of the bed of thework holder so that said bed may be readily used for boring through the work as well as only partiallythrough the same.

Still other objects of my invention are to construct the work holder plate in a manner so that iiat plates as well as rods or tubes i may be clamped thereby; to arrange the parts in a compact and easily operative manner; and to so arrange the various elements embodying my invention that they are easily adjustable, eiiicient in operation",4 will not get out of order,and-areiconomical to manufat'ure.-Y l f ,Thesobjects and others I accomplish by the means and in the manner hereinafter fully described and as more particularly pointed out in the claim, reference being had to the accompanying drawings forming a part of this specification, wherein similar reference characters indicate corresponding parts in the various gures.

Figure 1 is a top plan of my improved work-holder showing it detached from the press; Fig. 2 is a longitudinal side elevation thereof; Fig. 3 is a vertical end elevation; Fig. 4 is a transverse vertical section on line 4-4 of Fig. 2; Fig. 5.is a detail view, drawn in perspective, of the work holder plate.

Referring to the drawings, A represents a suitable base that comprises an elongated rectangular shaped plate provided with converging flanges or extensions at its opposite ends and which has suitable upturnecl longitudinal edges that form parallel facing walls B. The upper surfaces of these parallel walls are preferably dressed down smooth and have their upper outer edges undercut or gibbed substantially as indicated at b to form guide-ways or tracks upon which the movable member of the work-holder is adapted to be adjusted.

The slide or movable member of the holder preferably comprises a substantially rectangular plate C. disposed transversely across the base in a vertical plane and has a rearwardly extending foot c at each end that projects at right angles to the same and is braced or reinforced by the usual strengthening ribs or webs cast integral therewith. The opposite or stationary member of the holder preferably comprises a transverse l wall D that arises in a vertical plane adjacent to the end of the base and which is cast integral therewith. The upper longitudinal edges of both the movable land the stationary members of the holder are in substantially the same horizontal plane and the portions of the side walls B contiguous to the stationary member are cut away down to the base to form a recessd as will hereinafter fully appear.

In order to guide the movement of the soL slide member C and retain the samelupon/ssf/ the tracks b, I prefer to/eutfa/grbve C', in the under surfaceofvthe feet c which are, vas/shown/i/n' Fig. 4, of substantially the 'I same shape in cross-section as said guides so as to prevent their lateral movement thereon. The means for adjusting the movable member toward or away from the stationary member comprises a longitudinally disposed screw-threaded bolt E that passes horizon- ,tally through the screw-threaded bore of a \vertical bearing block e mounted on the end of the base opposite the stationary member D and is provided at its outer extremity with an operating hand wheel E. The opposite end of this bolt Eabuts and is r e tained by a set screw in a suitable socketin block c secured to the rear surface of plate C in a well known manner so that when said bolt is rotated in one direction said plate will be moved toward the opposing stationary plate'\and when rotated 1n an opposite direction said plate C vwill be moved away from the opposing plate. y v

For the purpose of centering work such as rods, circula-r bars and the like, I employ a centering block or jig 10,'illustrated in detail in Fig. 5 of the drawings which comprises a relatively thick substantially rectangular shaped plate that is removably and adjustably secured to theinner face of end plate D and which is provided on its outer face with a central longitudinal groove 11 and a central transverse groove 12 arranged at substantially right angles to each other. A lateral pivotal stud 13 projects from the rear of said jig the axis of which is substantially in alinement with the point of intersection of the grooves 11 and l2. Stud 13 is adapted to be inserted in one of a series of holes 14, 14, bored transversely through the central portion of stop-plate D and then said jig is turned to the proper angle and locked by means of set-screws or bolts 15, 15, tapped into said stop-plate at an angle to and meeting the bores of said .ably placed below the work holder in order that a bit or drill after forcing through the work, will not injure the table or other parts. In order to facilitate the insertlon of said table the lower portion of the stop-plate D is preferably cut away as shown at 17 so as to bridge over said table and enable the latter to be withdrawn and reversed. When the drilling does not pass through the work the table may be withdrawn through opening 17 and inverted as shown in dotted line in Fig. 4, so that the web of the angle iron 1s uppermost thus forming a level surface upon which the flat work may be placed.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, isz- In combination with a vise comprising a bed-plate, a stationary jaw mounted at one end thereof, an adjustable jaw movable upon said bed-plate toward and away from said stationary jaw, and a supplemental jaw adjustably mounted to the face of said stationary jaw, a reversible substantially U- shaped rest or bed disposed below said supplemental jaw adjacent to said bed-plate.

In testimony whereof I affix my signature inthe presence of two witnesses.

OWEN B. GROSS. Witnesses E. K. LUNDY, Jr., M. A. MrLoRD. 

